Evidence map›Paper›PMID 30334657›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2020

Non-invasive monitoring of longitudinal changes in cerebral hemodynamics in acute ischemic stroke using BOLD signal delay.

Ahmed A Khalil, Kersten Villringer, Vivien Filleböck, Jiun-Yiing Hu, Andrea Rocco, Jochen B Fiebach, Arno Villringer

Abstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Progressive microvascular failure in acute ischemic stroke: A systematic review, meta-analysis, and time-course analysis.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Ahmed A KhalilCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.ORCID 0000-0003-1752-4305
Kersten VillringerCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Vivien FilleböckCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Jiun-Yiing HuCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Andrea RoccoCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Jochen B FiebachCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Arno VillringerCenter for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Relative delays in blood-oxygen-level-dependent (BOLD) signal oscillations can be used to assess cerebral perfusion without using contrast agents. However, little is currently known about the utility of this method in detecting clinically relevant perfusion changes over time. We investigated the relationship between longitudinal BOLD delay changes, vessel recanalization, and reperfusion in 15 acute stroke patients with vessel occlusion examined within 24 h of symptom onset (D0) and one day later (D1). We created BOLD delay maps using time shift analysis of resting-state functional MRI data and quantified perfusion lesion volume changes (using the D1/D0 volume ratio) and severity changes (using a linear mixed model) over time. Between baseline and follow-up, BOLD delay lesions shrank (median D1/D0 ratio = 0.2, IQR = 0.03-0.7) and BOLD delay severity decreased (b = -4.4 s) in patients with recanalization, whereas they grew (median D1/D0 ratio = 1.47, IQR = 1.1-1.7) and became more severe (b = 4.3 s) in patients with persistent vessel occlusion. Clinically relevant changes in cerebral perfusion in early stroke can be detected using BOLD delay, making this non-invasive method a promising option for detecting tissue at risk of infarction and monitoring stroke patients following recanalization therapy.

Indexed as

HemodynamicsAgedBrain IschemiaCerebrovascular CirculationFemaleHumansMagnetic Resonance AngiographyMagnetic Resonance ImagingMaleMiddle AgedMonitoring, PhysiologicOxygenPerfusionStrokeOxygenacute strokeblood flowBlood-oxygen-level-dependent delayperfusionresting-state functional MRI

Identifiers

PMID30334657
PMCPMC6928563

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.